A dramatic and worldwide increase is occurring in the prevalence of overweight and obesity in women of childbearing age. Obese women carry a significant excess risk of a variety of serious complications during pregnancy, and in addition, maternal obesity predisposes to obesity in the offspring. This book provides a timely update on the latest knowledge on maternal obesity and pregnancy. A very wide range of issues are covered, including macrosomia and associated shoulder dystocia; the risk of miscarriage, malformations, and complications of pregnancy; the impact of hyperglycemia; clinical management; consequences for anesthesia and ultrasound; impacts on breastfeeding, fertility, and childhood obesity; and pregnancy following gastric surgery. All of the authors are recognized experts in their fields, and the book has been designed to meet the practical needs of obstetricians, gynecologists, internists, and general practitioners.